1012118977 has 2 divisors, whose sum is σ = 1012118978. Its totient is φ = 1012118976.

The previous prime is 1012118971. The next prime is 1012119001. The reversal of 1012118977 is 7798112101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1003685761 + 8433216 = 31681^2 + 2904^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012118977 - 2¹⁵ = 1012086209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012118971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506059488 + 506059489.

It is an arithmetic number, because the mean of its divisors is an integer number (506059489).

Almost surely, 2^1012118977 is an apocalyptic number.

It is an amenable number.

1012118977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012118977 is an equidigital number, since it uses as much as digits as its factorization.

1012118977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 37.

The square root of 1012118977 is about 31813.8173911903. The cubic root of 1012118977 is about 1004.0234491462.

The spelling of 1012118977 in words is "one billion, twelve million, one hundred eighteen thousand, nine hundred seventy-seven".